Thank you for your questions! Regarding the viewpointChangedHandler, the best way to be notified when map navigation starts and stops is through KVO on the "navigating" property of AGSMapView. You can use the viewpointChangedHandler, but that will get called multiple times during a map navigation animation. To know when the navigation stops, use KVO:
// create a private context for KVO (outside he class implementation)
private var myContext = 0
// add an observer for the mapView.navigating property:
mapView.addObserver(self, forKeyPath: "navigating", options: .new, context: &myContext)
...
// "observe" the navigation value. This will get called whenever the map starts/stops navigating
override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {
if context == &myContext {
if keyPath == "navigating" {
print("navigation: \(mapView.isNavigating ? "Started" : "Stopped")")
}
} else {
super.observeValue(forKeyPath: keyPath, of: object, change: change, context: context)
}
}
As for your app size question, there are a few reasons why the SDK is much bigger at v100.0 than at 10.2.5. Part of the reason is that there is just more code, which results in a larger SDK. The main reason, however, is that we've enabled "bitcode" when compiling/building the SDK. This results in a 3-4x larger size for the SDK. That size increase will eventually get trimmed out when downloading from the App Store.
You can take a look at this Apple Documentation, which contains information on how to get files sizes for thinned apps.
Exporting Your App for Testing (iOS, tvOS, watchOS)
And finally, we fully support iOS versions 9.x and 10.x.
Mark
